Bed frame



FIG. 1 is a perspective view of a bed frame showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is an enlarged left side view thereof;

FIG. 5 is an enlarged right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is another perspective view thereof; and,

FIG. 9 is an enlarged view of portion 9 of FIG. 8 . 

CLAIM The ornamental design for a bed frame, as shown. 